The DefinitionsLog EntitySet - A Description

An entry is added to the definitionslog EntitySet each time a CREATE, ERASE, SET < objname> <attribute>, RENAME, PERMISSION, COMPILE, or UNCOMPILE command is performed.

The ' SN' sequence number increases by 1 for every entry added.

A CREATE command with child objects, such as EntitySets, relationships with fields, forms, etc. inserts a log entry for every child object as well as for the parent. Any ERASE commands insert a log entry for each child object and then one for the parent object.

A RENAME operation creates two entries, the first with the old object name and the second with the new object name. Objects with fields, such as EntitySet, document, form, menu, and relationship with fields, create additional records for every field, formfield, and so on.